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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2011.03787.x
|2 doi
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|a eng
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|a Balao, Francisco
|e verfasserin
|4 aut
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|a Phenotypic consequences of polyploidy and genome size at the microevolutionary scale
|b a multivariate morphological approach
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 30.12.2011
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|a Date Revised 21.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2011 The Authors. New Phytologist © 2011 New Phytologist Trust.
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|a • Chromosomal duplications and increases in DNA amount have the potential to alter quantitative plant traits like flower number, plant stature or stomata size. This has been documented often across species, but information on whether such effects also occur within species (i.e. at the microevolutionary or population scale) is scarce. • We studied trait covariation associated with polyploidy and genome size (both monoploid and total) in 22 populations of Dianthus broteri s.l., a perennial herb with several cytotypes (2x, 4x, 6x and 12x) that do not coexist spatially. Principal component scores of organ size/number variations were assessed as correlates of polyploidy, and phylogenetic relatedness among populations was controlled using phylogenetic generalized least squares. • Polyploidy covaried with organ dimensions, causing multivariate characters to increase, remain unchanged, or decrease with DNA amount. Variations in monoploid DNA amount had detectable consequences on some phenotypic traits. According to the analyses, some traits would experience phenotypic selection, while others would not. • We show that polyploidy contributes to decouple variation among traits in D. broteri, and hypothesize that polyploids may experience an evolutionary advantage in this plant lineage, for example, if it helps to overcome the constraints imposed by trait integration
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a DNA, Plant
|2 NLM
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| 700 |
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|a Herrera, Javier
|e verfasserin
|4 aut
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|a Talavera, Salvador
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 192(2011), 1 vom: 01. Okt., Seite 256-265
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:192
|g year:2011
|g number:1
|g day:01
|g month:10
|g pages:256-265
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|u http://dx.doi.org/10.1111/j.1469-8137.2011.03787.x
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